Diaphragm-horn



J. E. STORMS.

mAPHRAGM HORN.

APPLICATIONflLED JULY 1.0, |915.

Patented Jan. 11, 1921.

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1. E. STORMS.

DIAPHBAGM HORN.

APPLICATION FILED 1uLY10. |916.

Patented Jah. 11,1921.

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I. E.A SIORMS.

` DIAPIIRGMHoRm APPLICATION FILED JULY I0. I9'I6..

1,365,563. Patented Jan. 11,1921.

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P ArENT OFFICE.

JORDAN E. STORMS, OF JACKSONVILLE, FLORIDA, ASSIGNOR OF ONE-HALF TO THE ARTHUR-JOCELYN'SALES COMPANY, OF JACKSONVILLE, FLORIDA, AV PARTNER- SHIP COMPOSTED OF THEODORE A. BLXNN, WILLIAM H. MELRATH, AND IR.. JOCELYN GOFF.

DIAPHRAGM-HORN.

Application filed July 10,

a citizen of the United States, residing atV Jacksonville, in the county of Duval and State of Florida, have invented new and useful improvements in Diaphragm-Horns, of which the following is a specification.

rlhis invention relates to improvements in f diaphragm horns such as are used for alarm or warning signal purposes, principally upon motor vehicles.

The principal objects of the invention,l

briefly stated, are to provide a horn wherein the diaphragm may be vibrated at a relatively high frequency and through a maXi-' mum extent in order to produce sound waves of great length and sounds of musical pitch and to cause the bell and the air column therein to become resonant; to provide a horn wherein the diaphragm although vibrating at high frequency will not have any uncontrolled reactionary vibrations but will be at all times completely under the control of its actuating element in order to enable the pitch, intensity and character of the sound or note produced to be definitely predetermined in connection withthe construction or patterning of the said element; to provide a horn wherein the diaphragm A actuating element may be readilyreplaced, whenever desired, by another one having a different pattern and which will produce a note or sound of diiierent pitch, intensity, or character; and to provide a horn wherein the operative relation between the diaphragm and its actuating element will not be aiiected by the vibration of the vehicle on which the horn may be carried.

The invention consists in certain novel features of construction, combination and relation which together with the above and other objects and advantages will appear as" the description proceeds.Vr v

A preferred embodiment of the invention is illustrated in the accompanying drawings wherein v Figure 1 is a perspective' view of ahorn in which the features of the invention are incorporated.

Fig. 2 is a side elevation, the casing cover plate being removed. I

Fig. 3 is a vertical cross section on the line 3--3 of Fig. 2.

Fig. 4 is a detail vertical sectional view Specification of Letters Patent.

Patented Jan. 11, 1921.

1916. serieu No. 108,444.

showing the relation between the diaphragm and its actuating element.

Fig. 5 is a detail elevation of the diaphragm.

Figs. 6 and 7 are, respectively, a detail plan and side elevation of the blank from which the stylus holder is formed.

Fig. 8 is a detail elevationfof the stylus holder, showing, in section, the relation betweenit and the diaphragm.

Fig. 9 is a detail plan view of the stylus.

Fig. 10 is a plan and Fig. 11 is a side elevation of the diaphragm actuating element.

F ig. 12 is a fragmentary side elevation of a gear wheel which in the present embodiment, constitutes a carrier for the diaphragm actuating element.

Fig. 13 is a detail view showing in dis-4 assembled relation certain parts which serve for the mounting and electrical connection of a binding post.

Fig. 14 is a front elevation of the casing which incloses the operating parts.

Fig. 15 is a front elevation of the sound chamber, and

Fig. 16 is a detail sectional view on the lineA '1616 of Fig. 2.` y

Similar characters of reference designate corresponding parts throughout the several views.

The operating parts are inclosed in a casing 1 which has as one of its side walls a removable cover plate 2. The casing 1 has at its vfront end an extension 3 terminating in a disk-like ilange 4 to which is secured a. casting 5. The casting 5 is interiorly fashioned to provide a sound chamber 6 and has a central tubular or cylindrical nipple 7 upon which is mounted a bell or resonator 8 of the usual flaring form.

The plate 2 is secured to the casingl by fastening screws 9, one of which is threaded into the extension 3 andthe others of which are threaded into lugs 10 arranged interl nally of said casing and by a screw 11 passed suoli that the vibrations of the diaphragm are completely underthe control of the said ring, notwithstanding the tendency of the diaphragm to assume its normal plane.

The horn may be operated to give forth sound for long or short periods or at varying intervals as may be desired by suitably controlling the operation of the motor 37. When the pattern of the ring 19 is selected to provide for a sound having a characteristie irregularity, e. g. a sound of rising and falling pitch or of increasing and diminishing intensity, this sound will be continuously repeated throughout a continuous rotation of the ring 19 through several revolutions.

While I have described a single preferred embodiment of the invention, it will be understood that this description when taken in connection with the appended claims is not intended to limit the scope which they may have by virtue of their terms or to be taken otherwise than for purposes of exposition or interpretation.

Having thus described my invention, what I claim is l. In a horn, the combination of a resilient, vibratory diaphragm, a stylus connected therewith; and a movable diaphragmactuating element having a groove with a plurality of spaced projections therein to produce a definitely-patterned surface against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times under the direct control of said actuating element; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, so as to originate a sustained musical sound of definite pitch and intensity.

2. In a horn, the combination of a resilient, vibratory diaphragm, a stylus connected therewitlu'and a rotatable diaphragmactuating ring having a peripheral groove with a plurality of spaced projections therein to produce a definitely-patterned surface against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times under the direct control of said actuating element; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, so as to originate a sustained musical sound of definite pitch and intensity.

In a horn, the combination of a resilient, vibratory diaphragm, a stylus connected therewith; and a movable diaphragm-actuating element having a relatively-deep, peripheral groove with a plurality of alined spaced projections therein to produce a surface of a definite pattern, against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times under the direct control of said actuating element; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, so as to originate a sustained musical sound of definite pitch and intensity.

4. In a horn, the combination of a resilient, vibratory diaphragm; a stylus connected therewith; a resonator projecting from said diaphragm; and a movable diaphragm-actuating element having a groove with a plurality of projections and intersecting grooves of different dimensions therein to produce a definitely-patterned surface against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times under the direct control of said actuating element; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, and through a maximum extent, so as to originate a sustained musical sound of definite pitch and intensity and to set up air-column resonance in the resonator.

5. In a horn, the combination of a resilient, vibratory diaphragm; a stylus connected therewith; a resonator projecting from said diaphragm; and a rotatable diaphragmactuating ring having an endless groove with a plurality of alternately arranged projections and intersecting grooves to produce a denitely-patterned surface against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times ,under the direct control of said ring; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, and through a maximum extent, so as to originate a sustained musical sound of definite pitch and intensity and to set up aircolumn resonance in the resonator.

6. In a horn, the combination of a resilient, vibrator Y diaphragm; a stylus connected therewith; a rotatable diaphragm-actuating ring having a plurality, of alternately arranged projections and transverse intersecting grooves to produce a definitely-patterned surface against which the stylus is constantly pressed by the diaphragm, whereby said diaphragm is maintained at all times under the direct control of said ring; said patterned surface being designed to vibrate said diaphragm, by means of the stylus, at a high frequency, so as to originate a sustained musical sound of definite pitch and intensity; and a rotatable carrier upon which said ring is removably mounted.

7. In a horn, the combination of a resilient vibratory diaphragm, a stylus associated therewith, a rotatable diaphragm actuating ring being formed with two parallel endless grooves arranged side by side and terned Snrl'ace ot each groove consisting ofk l a plurality or alternately arranged'projec.-

tions and intersectingy transverse grooves, and the patterned surfaces in the t'wo grooves differing from each other and each? designed to vibrate the diaphragmv through the medium of the stylusat alhigh frequency so'aS 'to originate aidiferent'musical sound of definite. pitch and intensity, thek Said ring being Shiftable laterally to bring ei-thenof the patterned surfaces thereof into position for co-action with said Stylus;y

8.111 a horn, the combination of aresilient, vibratory diaphragm; a stylus connected therewith; and a rotatablef diaphragmactuating ring formed with two parallel, endless grooves arranged side'fbysidev` and having definitely-patterned surfaces .againstv one or thelotherof which the styli'iseiscon'# sta'ntly pressedfby the diaphragm; whereby Said dia1phrag1n` is-` maintalii're'dr ati arlltimes under thedirect control'of said ring; said patterned surfaces` 'being different; from each other .and 'each designed to vibratesaid diaphragm, by jmeans of said stylus, ,atl a high frequency, so asI to originate a different musical sound" of definiteY pitch and intensity-g and' said ring being shiftable'I laterally to bring eitherofsaid surta-ces.v .into position for co-action with said-stylus.

In. testimony whereof l have vhereunto set my hand in presence of tiwosubscri'bing witnesses.

JORDAN-E; STORMS. lWitnesses:

FREDB. NOBLE,

M. E.- NOBLE: 

